18234051061 has 4 divisors (see below), whose sum is σ = 18236012032. Its totient is φ = 18232090092.

The previous prime is 18234051041. The next prime is 18234051089. The reversal of 18234051061 is 16015043281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18234051061 - 2²³ = 18225662453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18234051001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966471 + ... + 985156.

It is an arithmetic number, because the mean of its divisors is an integer number (4559003008).

Almost surely, 2^18234051061 is an apocalyptic number.

It is an amenable number.

18234051061 is a deficient number, since it is larger than the sum of its proper divisors (1960971).

18234051061 is an equidigital number, since it uses as much as digits as its factorization.

18234051061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960970.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 18234051061 in words is "eighteen billion, two hundred thirty-four million, fifty-one thousand, sixty-one".